I just got a avic Z1 at c.c they installed it for me and i did all the by passing needed, it works graet but only one problem i have a rear flip down monitor and a pionner TV tuner that i bought with my 5700dvd and everything was good but now i con not see any of the TV channels on my rear monitor i took my truck back to circuit city and they said that the signal was to weak and there for the rear monitor did not pickup the chanels but it did before has anybody had this problem. Thanks for the help

It depends on how they hooked all this stuff up.

The Z1 should be the hub of the system... If you have a pioneer tv tuner that should be hooked into the Z1. Can you see the TV on the Z1?

The rear monitor should be hooked to the Z1's "rear monitor" out. Whatever you see on the Z1 should be seen on the rear monitor (or you can use the Z1 to tell it you want to see something else back there).

If the TV tuner used to work and now doesn't then either it's not compatible with the Z1 or it sounds like they messed something up.