Best Answer

on mine i had a premium sound system package stock. i had to bypass the stock amp to run the head unit even though i am running it on the pre amp from the head unit. the speaker will notwork unless you bypass the the stock amp.

User Avatar

Wiki User

โˆ™ 2015-07-15 21:00:02
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: How do you connect a car stereo to an '88 Mercury Grand Marquis?
Write your answer...
Still have questions?
magnify glass
People also asked