I had the dreaded radio code problem, and the dealer wanted
$60-$80 to get the serial and then get my code.
I got the serial myself and just called about 3 dealers until
I found one willing to give the code over the phone.
fyi, I have a MR490089, the dealer gave me 2 possible codes.
I'll post them here with no garuntee that they will work, also
remember if you enter a wrong code 3 times, you'll get the "off"
on your radio display. There's a solution for that pinned at the
top of this forum.
2 possible codes for a mr490089(based on my serial) 2741, 3963.
One of those unlocked my radio. Will it work for a different serial,
I have no idea. good luck
mittech, I sent you a pm, please ignore(and thanks).