[morgal48]

Yes. The 6-channel Haes amp is 40W per channel. Your head unit should be more than that, and hooking it up directly will be better. Are your speakers originals? If so, be sure to check the paper cones in the dash and shelf speakers. Mine had almost no paper left, and were replaced. Door subs are poly cones at 18 years are still good. Front and rear speakers are 4-ohm. Doors are 2-ohm. Make sure your system setup matches for max performance. Have fun! BTW, I kept my CDR-220 and installed a new amp. The difference in sound will surprise you.