Replacement radio for 2008 grand marquis was simple to purchase. I up graded from single cd player to a 6 cd radio. To install took less than six minutes. Factory replacement radio cant tell unit was replaced. Unit works great!

***Reply by ReplacementRadios: Technically you can install the CD6 in place of the single disc BUT you will not have ANY bass. That is because there was also an amp and subwoofer in vehicles originally equipped with the CD6. ALL the bass is routed to that plug, which most single CD equipped vehicles do not have.***

Rating: [5 of 5 Stars!]