Loren

The following is provided by one of our Contributing Members. Sirius Installation Instructions - Porsche 997 C2S For Car With BOSE But No NAV Or CD Changer DISCLAIMER: PROCEED AT YOUR OWN RISK- YOU WILL PROBABLY VOID YOUR WARRANTY AND YOU MAY RISK CAUSING DAMAGE TO YOUR VEHICLE FOR WHICH YOU WILL BE SOLELY RESPONSIBLE. BACKGROUND: This installation was performed on a C2S model with the latest PCM software, the Bose audio option but no CD changer or NAV option installed. These instructions are SPECIFIC to a car without NAV or the CD changer as there is no fiber optic cable to pick up a connection near the position you will mount the SIRIUS unit. You will therefore have to pick up the fiber optics closer to the amplifier in the lower portion of the luggage compartment adjacent to the luggage lamp. It is a slightly more difficult installation than one for a vehicle with an existing NAV or CD changer. Vehicles with NAV systems (and/or CD changers) will have a fiber optic cable closer to the SIRIUS unit that can be disconnected and run through the cable supplied with the kit. In these cases, there should be no no need to replace the fiber optic cable from the amplifier and as pictured elsewhere in the forum should be a simpler installation. In contrast with previously described installation instructions, it was NOT necessary to remove the cowl and windshield wipers or disconnect hoses and wires fed through to the cowl. Order Sirius Cayenne kit (specify that you want Sirius for the CD changer option whether you have a CD Changer or not) - the cable is required for this installation. No cutting, soldering, or wire splicing was necessary for this installation. Everything is essentially plug and play but the difficulty lies in removing plastic panels, getting access to the various components, and identifying the correct cables (and plugs) necessary for the installation. I would NOT recommend this as a DIY project for anyone who does not have a good amount of experience with electrical work, automotive/audio electronics, or sophisticated computer equipment installation. There are three major cable runs. 1) Power from car to SIRIUS unit, 2) bypass of the fiber optic cable that travels from the car to the audio amplifier through SIRIUS unit, and 3) antenna cable from SIRIUS unit to antenna mounted under cowl. There are two items that need to be mounted: the SIRIUS unit itself, and the multi-purpose antenna (plugs for SAT and GPS). NOTES: I found it necessary to dismantle the fiber optic / power supply cable bundle by removing the black spiral adhesive tape and white adhesive labels separating the orange fiber optic cables pair from the power supply cable. I also separated an antenna wire pair from another bundle with other lines and tubing specific to the Cayenne and unneeded for the 911 install. There was one orange fiber optic and one antenna cable left over at the end of the installation in addition to a myriad of other Cayenne specific small parts. The Cayenne satellite install TSB is worth reviewing but is largely useless for this installation. Note that all fiber optic plugs have black plastic protective covers which must be removed before they are connected. Perform all installation procedures with the key turned off and removed from the ignition. Porsche seems to recommend disconnection of the battery for electrical work on their vehicle. STEP BY STEP: 1. Remove ALL accessible plastic access covers from interior of luggage compartment with the exception of the headlight/turn signal access panels. You will need to access to the area where the CD changer and NAV are usually mounted, the area under the cowl above the cabin air filter, and the amplifier component stored behind the flat tire tools. I removed the largest plastic piece (requires removal of approximately 4-6 phillips screws) and disconnection of the luggage compartment lamp effected by pulling a small plug from a receptacle just behind the lamp. Note its orientation when you disconnect it so you can reconnect it properly at the end of the installation. Other panel and carpet fasteners are removed as needed. The cowl directly under the windshield wipers may be left in place (it can not be removed without the disconnection of windshield washer tubing and removal of the wiper themselves). 2. Remove the molded carpet pieces in the CD changer / NAV area (passenger side of the luggage compartment) and place the Sirius unit towars the center of the luggage compartment with cable receptacles facing forward. I secured the unit at the end of the installation with two sheet metal screws through the carpet into the metal frame designed to hold audio components. (This is shown in photographs in other posts). Plastic ties would work nicely here too. 3. Locate the spare (and hidden) BLACK/WHITE/RED/BROWN power supply plug tucked beneath the carpet on far left side of compartment which you will need to bring power to the unit. Plug one end of the supplied power cable into this plug and the other end into the Sirius unit. Note that this may not be possible (plug won't physically reach power supply) unless the power cable has been separated from the orange fiber optic cable in the fiber optic bundle and re-directed in the opposite direction. There will be a remaining unused plug on this cable (on the power supply end) which can be used to power a CD Changer or NAV should you add it later. 4. Locate the ORANGE fiber optic plug which plugs into the amplifier (component with ventilation fins behind the tire repair tools) behind its wiring harness. This plug is hidden from view and is NOT clearly visible. It must be traced from a bundle of the car's wires just to the right of the amplifier unit near the luggage compartment lamp on the driver's side of the vehicle. 5. Identify the ORANGE fiber optic cable supplied in the kit with MALE -and- FEMALE plugs that branch off approximately 4 to 5 inches from each other forming a 'Y'. Work with this end of the cable for this step. 6. Locate the ORANGE fiber optic cable (with a black plug) connected to the amplifier just behind the wiring harness (and out of sight) and disconnect. Plug this male component into the FEMALE plug on the end of the MALE/FEMALE cable end as described above. Connect the MALE plug into the amplifier behind the wiring harness. Be very careful not to damage, crush, or over-bend the fiber optic cable which runs as part of a bundle from the car as failing to do so will necessitate a very expensive not covered by warranty service visit. Remember that fiber optic cables have a bend radius that if exceed DESTROYS the cable and will also make future troubleshooting difficult. Plug the opposite end of the cable (also a MALE) into the Sirius unit after feeding and routing the cable under the carpet. 7. Plug the antennae cable (brown/green) into the receptacles on the Sirius unit. Locate the purple dual antenna plug on the opposite end of this first antenna cable and connect it to the dual purple plug of the second antenna cable. When the two antenna cables are connected (via the purple plugs) there will be 15-20' of antenna cable left to coil and tie off. Feed the WHITE and PURPLE 90 degree (right-angle) plugs through an available rubber grommet securing it as needed with ties along the way and run it to a space just over the air filter. At this point, you connect the Sirius antenna with the black side facing up. It should be especially snug in the position under the cowl and over the air filter and can be further secured with double sided tape as needed. Note that it may be possible to better secure the antenna (without removing the cowl) by removing the air filter and its enclosure. There should be a receptacle on the underside of the cowl for a phillips screw to secure the SAT/GPS antenna. A flat ratchet wrench type screwdriver with an offset should allow you to drive the screw in the limited space available but I have not experimented with this approach yet. 8. Tie up loose cables with supplied plastic ties. Run wires where possible under carpet and be sure to take care to protect the orange fiber optic cables.. Record the SIRIUS I.D. # in the small print (not the CRIN #) from the label on the unit which you will need for activation. Replace plastic panels. Make sure the car is located outside with a clear view of the sky in all directions. Turn ignition to ACC position. If for some reason, PCM doesn't power up or appear to be functioning normally, you have made a mistake and should go back and check your work. 9. Press Audio button and Press FM/AM band select button and PCM should recognize the satellite unit and show the message "acquiring signal". The default channel is 147 or 148 and you need to hear the programming before proceeding or you must go back and check your connections. Contact Sirius with the unit's ID # to receive 3 free months and activate the unit. Total working time was 2 hours and 30 minutes exclusive of activation with almost 50% of the time spent identifying unfamiliar parts. I believe I could do a second installation in 90 minutes or less.