Back Window Roll Down or Up When Slapping

[DP75]

98 4runner and I have a 15" Kicker CVR in a ported box that is about 3 feet long running 2 amps and type r speakers ....anyways...does it matter when i am playing loud music for the back window to be down or up my friend said that he would leave it up just incase of the window or motor for the window could break let me know if anyone as any opinions or actual hard facts on whats best for the car thanks!

 

[DesertEdition]

98 4runner and I have a 15" Kicker CVR in a ported box that is about 3 feet long running 2 amps and type r speakers ....anyways...does it matter when i am playing loud music for the back window to be down or up my friend said that he would leave it up just incase of the window or motor for the window could break let me know if anyone as any opinions or actual hard facts on whats best for the car thanks!

Have you noticed the window move at all when the musics up loud? The only thing I could maybe see be a problem is if like 1/2 way point and vibrates back and forth and add driving wind to that, may cause some strain on the motor to control it but as long as your seals are tight and just pop off that back pannel and tighten all the bolts you shouldn't have a problem

 

[DP75]

Thanks man all the
Bolts are tight just Gunna strictly either have the window up or down all the way tha ks man!