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I have a 2002 C2, 6 speed with the M490 sound system.

Does someone have the wiring diagram for this system?

I am keeping the Becker CDR-220

I just purchased Focal K2's to use in the dash and Focal 100Ca1 for the rear.

Planning to get Focal 13KS for the doors.

Where should I mount the crossovers for the K2's? If it is mounted in the trunk, do I need to run new wiring to the crossover to the dash speakers or do I use existing wiring.

How good is the stock amp? is it worthwhile to upgrade?

Do they make pigtails for this system so I don't have to start splicing wire?


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I have a simlar set up in my 2000 Cab, Focal 100KPs in the dash, 100CA in the rear and 5WX in the doors. I have the crossovers and a JL Audio 6 channel amp in the trunk. For the dash you will need to run new wiring. The Focal KPs are seperate mids and tweeters, with seperte leads for each from the crossovers. The stock speakers/wiring only have one lead as the tweeters use a resistor. For the rears I used to stock wiring as the 100CA's are coaxial, no crossovers. The stock door wiring is useable for the 13KS, which is basically the replacement for the 5WS I used. The stock amp and wiring is set up to run these as subs. However, the stock amp is way underpowered for the Focals. You will probably want to replace the amp to get better sound.

I bought an adaptor from Becker America so that I could run RCA cables to the new amp rather than using the stock wiring, a cheap part. I did splice into the wiring harness at the old amp location to use the door and rear speaker wiring. PM me with your email address and I will try to get a copy of the wiring diagam off my manuals CD. With the older version of Adobe it was easy, but with the newer version it is harder to copy the pages. Worth a try thoough.

Edited by Dharn55
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