[Smallblock454]

This adapter doesn't work with a 2004 986 SE.

Also you`ll need an adapter that turns the interior bus signal to ignition on for your new radio. Or you have to do some additional wiring so you`re new radio gets B+ when you turn ignition on. On the CDR 23 the radio turns on when you put the key in the ignition lock, which also turns on the Bose amp. This is done by an interior bus signal from the instrument cluster / and Most bus to the amp.

Also you`ll no longer get any radio or cd-infos in your instrument cluster.

Easiest way is to replace radio an and amp and do a complete new wiring. Down side: they've used the Most-bus to have no hum or other noises. With analog chinch cables you have good chances to get hum or other high frequent noises from the alternator, even if you use good shielded cables.

Alternatively you can go with a Dension or something else and keep the CDR23 and the Bose.