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So, if you've got a sim card tray in a PCM 2 unit which either stays in or stays out, you'll need a new sim card tray. You can order a new one by contacting Becker direct and asking for your local becker parts reseller. In the UK, its around £20 plus VAT. In terms of fitting, you'll need a set of torx head drivers, numbers 8 and 6. You'll also need a 5mm hex head allen key. You don't need to disconnect the battery, but its probably adviseable. Remember on UK (and probably all European cars) leave the key in the ignition turned on before you disconnect your battery, else your neighbours will be as unhappy as mine with the secondary siren going off! 1 - Remove the horseshoe facia. There are other posts on this, but it is a push fit. I got mine off by pullinig gently the inside of the facia from each side of the air vents. 2 - With the allen key, rotate the 4 screws (2 either side) of the PCM unit, which will push in some arms which stop the unit coming out. 3 - Pull out the unit and disconnect the connections on the back. 4- Unscrew the two torx head screws on the of the unit. The top half then pulls off from teh front first. Be gentle with this, as it holds the CD player and there is a wired connection between the top and the bottom parts. You'll need ot pull off the connector. 5 - Unscrew the two screws on either side of the case holding the bottom to the front casting. The front then pulls off with some teasing but again, be careful as you'll need to disconnect wire connectors. 6 - Once the front is a stand along piece, unscrew the torx head bolts all around the outside and you now need to get the front off of the casting. This is a little tricky, but the best way is to insert (gently!) a chisel inbetween the plastic casing and the casting around the push on slots to push the plastic up enough to pass over the casting, then use a flat blade screw driver inserted and twisted into the slot in the side to push off the front. You'll need to do this side by side. 7 - Lift off the casing and thread the wires out (you'll need to thread them back through the casing when you refit it) 8 - Lift off the LCD screen and the metal side springs and disconnect the wire connector. By now, you can see the sim card holder. 9 - Pull off the volume know (its a push fit) and lift up the circuit board, and the rubber button moldings. 10 - Unplug the sim card holder (if you havn't already) and unscrew the 4 screws (number 6 torx) holding the sim card tray in. 11 - Put the new tray in and reverse all the above. Don't forget to take a note of where all connections were, and reconnect all wires on the way back.