Factory radio has audio? Aftermarket does not?
2005 Pontiac Grand Prix GTP please help!! Running
a Pioneer avic-850bt with a pac rp5-gm11 wire
I am looking for advice as well. I am looking to install a Pioneer FH-X731BT with a PAC rp5-gm11 in my 2004 Grand Prix GTP. I have a Heads Up Display(HUD). Am I going to be able to retain the HUD if I take out the stock head unit.
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