Go to www.hmaservice.com, sign up for a free account, then access the
factory manual online. Typically, you need to take off the dash panel,
but it's not as onerous as it may sound. Once it's out, you have access
to the screws that hold the sound system in place.
I had a feeling that might be the case. Getting them out is going to be
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.