If you want to get really lazy, you can also use a linear actuator in place of the speaker lift so you really can use your pinky finger for push button roof lifitng.
You need a 30" linear actuator a reversing switch and a power cord. With a fleet flatbed, I didn't even need any sort of bracket or extender, it works as is with some rubber chair leg bumpers on the ends of the actuator. For other models, you may need the 40" actuator.
Thanks Rando. Do you have a pic of this set up?