Pioneer deh-p4100..Need help

I got a pioneer deh-p4100...I connected it to my 88crx using the12volt wiring diagram....Once i had it on, my speakers turned on but no sound came out.....The whole deck turns on and plays the cds but i cant hear any music...i connected a different deck and it work but this pioneer one doesnt....any suggestions???

ohh....in the12volt diagram said the suppose to have 5 1/4'' in the front speakers but i got 6 1/2''...Could this messed up the deck....?????

One more thing that my pioneer deck was working before with all the speakers but i seen that on the rear wires from the deck was connect to all 4 speakers....and i ended up connecting them all to its right wiring and it stop working...Any suggestions...thanks

anyone....