Boxster Bose Rear Shelf Install

[garythompson]

Hi guys i hope one of you can help, I recently got hold of a bose rear shelf for my 2000 boxster S

i wondered if any of you have the wwiringdiagrams for the bose setup?

I have a becker traffic pro head unit running through the standard door and dash speaker setup with the front trunk mounted nokia amplifier ,I was hoping to simply connect the bose box to the rear speaker out on the becker as i guess these are not used when the nokia amp is fitted. i could also do with a copy of the porsche diagram to check this. I have put a multimeter on the pins of the box and it appears that the bose speakers are connected in parrellel as i am getting some unexpected resistance readings! Thanks !! <_<

[HenryV]

In the Bose box, the tweeters are 2 Ohms and the Sub is 0.5 Ohm (The sub is two 5.25" speakers with 1 Ohm impedance wired in parallel).

If you don't have the Bose amplifier you have several options:

1. The correct way:

You need two cross-over filters, one for high and one for low.

Typically, the low cross-over is available (built-in) on amplifiers with woofer out, the high cross-over is just a coil and capacitor (buy anywhere). This way you can regulate the bass and treble seperately.

Make sure that the amp you connect to the woofer can handle the very low impedance. (High current amps). Most amps will fry themselves when connected to the woofer (including your TrafficPro and existing Nokia amp).

2. The simple way:

Connect each subwoofer in series to a tweeter, and break the parallel connection. This raises the impedance on the left and right channel to (2+1) 3 Ohms which is ok with most amplifiers. The disadvantage is that the bass and treble cannot be seperated, and the maximum power is somewhat limited (although the 5.25" size also limits this). This way you can connect them to the Traffic Pro directly.

On your Traffic Pro, you should find both connector B and C1 being unused.

If you go for option 1 (new amp), you connect your (new) amp to the pins in connector C1:

C1: line output rear left

C2: line output rear right

C3: line output ground

C6: subwoofer line output

Note that C6 is full-range, not low-range. You still need a cross over filter if you connect to a sub (but the Bose 5.25" speakers can handle full range I understand)

You will also need to connect A5 (remote power on lead) to the amp.

If you select option 2 (speakers in series) you should use connector B directly to the speakers:

B1: loudspeaker rear right +

B2: loudspeaker rear right -

B7: loudspeaker rear left +

B8: loudspeaker rear left -

Do not mix options 1 and 2.

[Steevo]

Hi guys i hope one of you can help, I recently got hold of a bose rear shelf for my 2000 boxster S

i wondered if any of you have the wwiringdiagrams for the bose setup?

I have a becker traffic pro head unit running through the standard door and dash speaker setup with the front trunk mounted nokia amplifier ,I was hoping to simply connect the bose box to the rear speaker out on the becker as i guess these are not used when the nokia amp is fitted. i could also do with a copy of the porsche diagram to check this. I have put a multimeter on the pins of the box and it appears that the bose speakers are connected in parrellel as i am getting some unexpected resistance readings! Thanks !! <_<

<{POST_SNAPBACK}>

Hi. Did you manage to get that Bose rear speaker unit fitted? I've recently bought one but had no idea how difficult they are to fit.

Thanks, Steve.

[Tomikaze]

Great. I just got these speakers too. I'm not great with electrical stuff. Sounds like I might have a nightmare on my hands.

Hi guys i hope one of you can help, I recently got hold of a bose rear shelf for my 2000 boxster S

i wondered if any of you have the wwiringdiagrams for the bose setup?

I have a becker traffic pro head unit running through the standard door and dash speaker setup with the front trunk mounted nokia amplifier ,I was hoping to simply connect the bose box to the rear speaker out on the becker as i guess these are not used when the nokia amp is fitted. i could also do with a copy of the porsche diagram to check this. I have put a multimeter on the pins of the box and it appears that the bose speakers are connected in parrellel as i am getting some unexpected resistance readings! Thanks !! <_<

<{POST_SNAPBACK}>

Hi. Did you manage to get that Bose rear speaker unit fitted? I've recently bought one but had no idea how difficult they are to fit.

Thanks, Steve.

Edited March 21, 2008 by Tomikaze