Sub dash trimming

[JeepKJ04]

I was on crutchfield looking at getting a boss stereo ( https://www.crutchfield.com/S-eyH2S9WHBqa/p_104BE62CPC/Boss-BE62CP-C.html?tp=72357 ) and it says it requires sub dash trimming and I was wondering if any of y’all have that or know anything about it.

 

[Dstangline]

I ordered the below and it has a pic of what needs to be trimmed.

https://a.co/d/5mcMoOF

You must be registered for see images attach

 

[JeepKJ04]

I ordered the below and it has a pic of what needs to be trimmed.

https://a.co/d/5mcMoOF

You must be registered for see images attach

Thx that’s very helpful

 

[JeepKJ04]

I ordered the below and it has a pic of what needs to be trimmed.

https://a.co/d/5mcMoOF

You must be registered for see images attach

What did you use to cut with?