Two suggestions... Front and center low (like frame rail level)
Have your partner operate the system LISTEN for the pump. it's about .. Bolted to the pump.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times