Correct Metra Harness for 2008.5 Bose HU Replacement?

googlebutt

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mazdaspeed3
I'm getting ready to replace my Bose (without nav) headunit this weekend with an aftermarket unit, and after extensive searching I'm unable to determine for a fact that this Metra 70-7903 wiring harness will work without any modification. Anyone know?

Also, is the Bose system in the 2008.5 speed3 the exact same (as far as wiring) as the standard 3 of the same generation?
 
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