Hi i have a 2001 mercury grand marquis and i have a car audio system im wanting to upgrade my alternator and i was wondering if a 2008 Crown Vic Police Interceptor 200 amp alternator would work in my vehicle iv already put it in and bolted it down it fits fine just wondering if it would work properly the only differnce is the harness the mercury has a 2 wire harness and the crown vic harness is 3 wire iv got the other harness just dont know how to hook it up and if it would even work.

 

Hello, Ty -- and welcome to the Mercury Forums !!
I'd sure like to have some good news for you -- but I don't.
Your original 130-amp alternator will handle the demands of your electrical system with no problems.
The reason that Ford puts the 200-amp alternator in the P-71 is because the cop cars idle for long periods with all auxiliary equipment running, which drains the battery quickly.
Your best bet is to install the optional SIZE 65 BATTERY -- and keep the stock, 130-amp alternator in place.

However, a giant-killer audio system that can blow the windows out of the car is NOT a good idea -- it's actually pretty stupid. And childish.
Music that can be heard OUTSIDE of the car can be annoying to others -- and benefits nobody.
Besides, my adult daughters tell me that too-loud music is a turn-off to most females -- they understand that noise is stressful, and stress is bad.

But hey, I ain't your Daddy, so if you want to wreck a good electrical system in order to draw more attention to yourself with loud music -- have at it !!