Does your installer do it like this?

What you don't see (under the trim):

Nissan Pulsar 95 BEFORE Unfortunately for my client this is what he was left with when he purchased this car.	Nissan Pulsar 95 AFTER But all cleaned up "Very happy thanks!" Martin	Speaker Connections
N14 Pulsar Rear parcel shelf speakers.	Speaker Connections	Dynamat Placed to seal off and stop noise, whilst away from factory clips and moving parts.
Dynamat Placed to seal off and stop noise, whilst away from factory clips and moving parts.	Speaker connections	Speaker connections
Ford F250 truck	Ford F250 Speaker connections	Ford F250 Factory speakers BEFORE
Ford F250 Soundstream 5 by 7's and Dynamat AFTER	Mazda BT50	Toyota Corona Dynamat sheeting for sound proofing the car so all you hear is what you want to hear
Toyota Corona Dynamat sheeting for sound proofing the car so all you hear is what you want to hear	Toyota Corona Dynamat sheeting for sound proofing the car so all you hear is what you want to hear	Toyota Corona Dynamat sheeting for sound proofing the car so all you hear is what you want to hear
Toyota Corona Dynamat sheeting for sound proofing the car so all you hear is what you want to hear