Update Excel Text Box from Other Excel File

DON'T POST IF YOU DON'T READ AND UNDERSTAND THIS PROJECT IT WOULD BE REPORTED AS FALSE BID. We need automated VBA script to take values from excel a_source, lookup the codes in excel b_target and change the prices in b_target. (If code from excel a_source is not found in excel b_target, just ignore that code. See attached files for better understanding of this project. What I need is the 'script' to accomplish this. Not that you should do it for me manually. I would need this script to be able to put in different source and different target excel files. Note: the code and prices are in text boxes. I'm not sure about the relationship if there's any between text box and cell. Include the word Blue Magic in your proposal.