SWR to high

Okay.........did you unscrew the stock antenna and replace it with the Wilson?
If yes that is absolutely WRONG! Stock Volvo antenna mounts can barely handle the weight and wind load of the stock antenna let alone a Wilson 2000!
Mounted on passenger side?
Another bad move! Tree branches will have a field day with your new antenna!
Are you using the stock coax?
Horrible move, especially with a Stryker 497!
That is a high power radio that needs a good antenna system! That radio has NO business on a stock antenna system!
My suggestion to you is a screw in bird perch mount on the drivers side only with a good antenna mount and some good (not truck stop) coax routed properly into the cab. You can use the Wilson 2000,but they are no longer a favorite of mine. Quality isn't what it used to be at Wilson. I use a 5' Skipshooter top loaded fiberglass whip.
You should also consider running power for the Stryker direct to the battery. It will work off the power posts in the truck, but not recommended.
Strykers, and other high powered radios are NOT plug and play like a Cobra 29! They need to be installed properly to give you your money's worth and not damage your high dollar radio!
There are many Youtube videos out there to help you with a proper install.

Volvo Bird Perch Antenna Mount BPM1
Driver Extreme (DRX-3402) - Magnum Heavy Duty Double Groove Mirror Mount, with Heavy Duty DX239 Stud, Aircraft Quality Extruded Aluminum, Square-Lock Hardware, Mobile Antenna Mounts
coax https://www.dxengineering.com/parts/dxe-8xdx015
antenna NEW CB.HAM 5 FOOT BLACK SKIPSHOOTER, SKIP SHOOTER ANTENNA USA MADE!!! 636134502310 | eBay
These are common rookie mistakes that you have made, but with a little research you can make your system right and be able to truly enjoy your big radio!
Good Luck!
JD

 

I hope I wasn't too harsh! I just hate to see a guy/gal spend their hard earned money on a big radio and be disappointed with it or,worse, damage it! Getting stuff right in these newer trucks can be a little frustrating but when you get it right it is very satisfying! Although...........it will never be absolutely perfect! Just the nature of the beast!

JD

 

You can get longer or shorter coax depending on your needs. Try not to coil it if possible. If you can get to a Radio shop that does installs it might be a big help and time saver for you. If not do some research online and Youtube and you can probably find the info you need. @craig_sez has some pretty good vids on Youtube regarding installs, although mostly regarding Cascadias,but many of the same principles apply. This is also a good thread on big truck installs!
MOBILE INSTALL: 579 Peterbilt
He can get into the weeds a little but there is a lot of valuable info on big truck installs.

JD

 

Yea with a strong cb unit using the stock coaxial on out setup is like putting a v12 in a car with a single half inch exhaust.

 

To the original poster, here is how you can solve the problem of your coaxial cable being to long. Start by forming the excess length into the shap e of a figure 8 approximately one foot in length. Continue placing the excess on top of the first figure 8. The figure 8's are stacked one on top of the previous one. Secure with any tape that you have available. When you are finished, it should look like a single multi-layered figure 8 that is held together with tape. Problem solved.