Changing the flasher is not hard at all. First, pop off the speaker grill. To get it completely released, disconnect the tweeter connectors and the multi-plug at the bottom. If you run into details on that, let us know. Next, remove the 4 bolts holding the instrument panel and, without disconnecting anything, move it up and out of the way. You can hold in that position with a bungee going over the windscreen and down to an anchor point in front. With that done, you should have good access to replace the OEM flasher.
And yes, I couldn't be happier with the LED turn signal conversion.