Radio and phone dead

[britairdog]

Here’s the story: Boxster 987S  2005. The battery was flat one morning so used jumper leads from another vehicle battery to get a start. Unfortunately I was fooled by the red tab on my earth lead and connected the jump leads the wrong way round for about 5 seconds. There appear to have been no ill effects, with all systems electrical systems still working, except that the radio and phone module is completely dead. I checked all fuses in the footwell fuse box and none were blown. Next step was to slide out the radio unit and check the 10A fuse at the back. This was found to be blown so, in expectation that all would be ok, I fitted a new fuse and refitted the radio. However, IT IS STILL DEAD!  Have I killed the radio or is there anything else I might try? 

[willie hernandez]

I have a radio from a 2007 Boxster S you can have for 50 bucks shipped

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