Thread: 2002 300M Special Infinity Spatial Imaging System Issue

I have the factory Infinity Spatial Imaging system with 9 speakers.

About 7 years ago, I had some new equipment installed by Car Tunes:

Replaced the HU with: Pioneer DEH-P940MP
Replaced the rear deck speakers with: Pioneer TS-D690R
Replaced the front door speakers with: Alpine SPX-177A
Added sub: Alpine SWS-1241D
Added amps: JL Audio 300/4 to be used for the new fronts and rears, and JL Audio 250/1 for the sub

My desire was to keep the existing Infinity factory amp to power the center channel speaker, the two coaxials in the lower front corners of the front windows, and the two speakers in the rear doors.

The problem I have, and Car Tunes did not resolve, is that I have no sound coming from the center channel, the coaxials by the front windows, or the rear door speakers. I was told that the factory Infinity amp could still be used to power them, but I have no sound other than very faint from the driver side coaxial only.

Would anyone happen to have any insight what the issue may be? Can the factory Infinity amp be used to power the factory center channel, the window coaxials, and the rears door speakers, while at the same time using my new amps to power the front doors, rear deck and sub?

Thanks for your time...