2017 Mazda6, anyone in Philly/NJ area I can pay to help me get AIO tweaks?

Hello,

I am sure this will be a dead end. I have version FW v70.00.367 installed and I finally bought the connectors to do a serial connection myself, however
I can't downgrade to version 59 and there are none available online anymore. I will easily pay decent money because I drive a lot for work and I can't stand the infotainment system. Song titles are cut off, huge lag when I turn the car on for the warning label to pop up, etc. Aftermarket headunit suggestions? I have been researching for a while now and I am stumped.
 
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