Serpent SRX4 Gen 3 build Time lapse no sound

Building the Serpent SRX4 Gen3 after purchasing the 2wd Car and liking it. Build was nice with only 2 little things that held up the process. First was an oversized Pin for the Belt Tensioner which was solved with a bit sanding paper and a power tool. The second one needed sanding paper again to make the 2 lower gearbox halves in the front fit in the slot in the chassis. Other than that built went smooth. As usual No Sound.