Badco6354

Hello,
I have searched past forum post for info but I have come up empty! I just bought a 1995 Windom Lexter, right hand drive, which is supposed to be the same as the ES 300. I have installed an aftermarket DUA:L stereo unit, using a Toyata generic wiring harness. The car had a TOYOTA AM/FM cassete player as original equipment. I installed the new after market stereo, using the wiring diagram for the new unit, and the wiring harness. Everything lights up, but the is NO SOUND! I read in several post about OME amps, under the seats, or in the trunk, ect, that need to be bypassed or eliminated, but they are not there!!!!. What am I doing wrong, and how do I need to proceed! I have searched the previous post for a couple of days, and I don't find information that applies to my situation! Thank You in advance for your assistance

Badco6354