2018 Pete 579 Speaker sizes

My Sisters and Brothers of the road,
Finished my first 4 days OTR (yup, ever!) and holy cripes am I diggin' this gig. The thing that is NOT rocking are the speakers in the 2018 Pete 579! Man, I can either listen to this "Concert" sound or I can jab two ice picks into my eardrums and spin 'em round a bit. It's pretty much a wash either way. uh, lemme breakidownferya, stock speakers suck and are painful to listen to. The sleeper is better than the front o cab but not a lot. I have been trying to dig up stock speaker size info but ###### if I can find ANY. I'd rather get the specs than start opening up panels just to see what's in there. So's I come to ask all ya'll if you know the sizes and/or if you have replaced the stock dentist-drill-shrills that are claimed to be "speakers" in this cab. I know stock speaks are usually paper-coned, not worth their 2 oz magnet weight in cow "leavings", been through this before with an expensive Toyota Tacoma. MFGrs don't put money in the stereo systems, do they?! Anyway, lemme know if you know. Peace, Drive Safe, Stay Well, Keep 'er betwixt the ditches and watch out for the idiots who still think holding on to your cell phone as you drive is "real keen". (sorry. topic for another day). ...and they called him TomBow.....

 

Breaker 1-9. Ya got yer ears on?

 

I really don't think there's a "blownage" in the system. Did find out that, since it's a company truck, I do not have permission to change the head unit. Question though: I see some unconnected wires under the seats; they have connectors on them but nothing to hook up to. I am guessing these are for optional accessories not installed on this Pete 579. Anybody verify this?