Am trying to install Starmate 4 head unit in my new 2010 Sonata's dash cubby box. But the power cord (right angle style) is just a little too big for left-to-right clearance. I even tried trimming off some of the plastic up to hitting metal on the plug but it's still too big. What are my chances of finding a plug that requires less clearance? Although the factory radio is XM-ready I'd rather use my Sirius Starmate Replay.