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Adding onto this post to directly answer the question about the part numbers. There was a difference, even though the units seem to be exactly the same. The part number for the Bose amp that came out of my 2010 Mazdaspeed 3 tech pack was "BBM4 66 A20". (pictured right) The part number for the...

As the title states, I recently found out that the parasitic drain I've had on my vehicle's battery was being caused by my PAC RP4-MZ11 module not going to sleep. In dept details are below. The Symptoms: Letting my vehicle sit for 3 days or more resulted in my battery reading below 12V of...

Happy to report that the amp is still working perfectly.

I went with Pioneer for a name brand head unit, as they have great middle of the road options. Pioneer DMH-W2770NEX is the exact model I bought. I'm very happy with it so far. Wired and wireless carplay/android auto, good EQ to take advantage of the Bose sound system but no volume knob. The PAC...

Context, I have a 2010 speed3 with the tech pack, which includes the Bose sound system. I recently had all sound from my sound system die on me. Sound went from working perfectly, to intermittent cutting out, then a week later a pop of static and it was radio silence (literally). Still had...

How'd it do throughout the winter? Is it coated to prevent rust or did you need to coat it yourself?

Hey all, I'm creating this thread to share the symptoms, diagnoses and solutions I found when my clutch pedal feel and clutch biting point started to change this winter for my 2010 Mazdaspeed3 with 140,000kms. The Original Symptoms: After some regular highway driving, I started to notice the...