New Truck; New Problem

Hello all,

I am about to start ripping this 2021 Mack apart but would rather not with it 2 weeks old so maybe someone can help!
2021 Mack Granite Tri axle dump.
Has the multi-band antenna/co-phased dual whips already wired up and mounted to the mirrors.
I slapped in my Cobra 29 Classic thats been tuned and with the new Antenna setup swr is higher on 1 than on 40. Ant light comes on every time.
Not sure where to begin with this new truck and hate to tear it apart just to be able to get out well.
Any tips and advice where to start looking is greatly appreciated.
I would know where to look for cable paths, ground locations or if there is a control box some where for the multi-band.
Thanks yall.

 

Also I should hate stated: the antennas are RAMI whips.

 

Almost 4 on 1 and just over 3 on 40.

 

rofl. yea. thanks man.
Im not sure if its an actual ground issue somewhere, wouldnt know where to look on the truck.

and these RAMI whips i think are meant to be good outta the box. Never ran these before. there is what looks like a flat head slot up top but not sure if its tunable that way or have to trim or stretch the copper.

 

Bypassing whatever the issue is doesnt fix the problem.
“Band-aid” style applications arent what I do.
Appreciate ya taking the time to reply.