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Old 08-26-2009, 09:34 AM   #4
Registered User
Join Date: Aug 2008
Location: Brampton, Ontario, Canada
Posts: 765
My Ride: 2003 325i
Originally Posted by misterlau View Post
On steve's recommendation awhile back, I have the USA-Spec in my 01 M3 with stock headunit and HK package. Works perfectly and I haven't had any problems with it. There are two different models based on what type of HU you have, but if I remember correctly, crutchfield stocks both and if you input your car model, they will tell you which one is right. Look for any crutchfield coupons floating around on the internet too; I found a 20% off one when I bought mine!
Thank you for confirming that it works with a pre-2003 HU - I wasn't sure.

I'm happy to hear you had an easy install.
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