poor radio reception prob with NEW Pioneer HU 87 lesabre bad wiring?

[abtisraw]

whats up everybody, I recently installed a pioneer deh1700 HU into my 87 buick lesabre (maroon w/ maroon interiors - PIMP) anyway I dont know too much about car audio but consider myself a pretty smart guy. The problem is the radio reception. im in nyc where reception is very strong and as the car moves its just f ucking up. CD works fine. When I installed it, coming out of the wiring harness were 2 wires that I did not connect to my deck. I just taped up the ends. DIMMER and POWER ANTENNA. Obviously the power antenna needs to go to something? Maybe just have it touch the ground wire?! any help would be really appreciated. thanks.

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[JimJ 5,000+ posts]

The dimmer lead goes to the radio's illumination circuit...

Do you have a power antenna? If so, that's the switched power to put the antenna mast up and down...also make sure the Motorola connector is firmly plugged in on the back of the radio.