The on loan Bristol City striker has scored twice since returning to the club in the summer on loan and is desperate to add to his tally against the high-flying Bluebirds.
“It’s going to be special,” says Trundle.
“I’m desperate to be involved. It was my big regret when I left that I’d never experienced a derby game.
“I played against Cardiff for Bristol City and there’s a bit of a rivalry there but it’s nothing compared to this.
“When you live in the area for a while it doesn’t take you long to realise what the game means to people.
“And when you hear players from both sides talking about the games that have gone on before, it’s easy to see what a big derby it is.
“All the passion, the noise, it’s everything you want. I never got that chance when I was here the first time; now I’m desperate for it.
“It’s been okay coming off the bench and I’ve managed to get a couple of goals, which is great for me.
“But I’ve made no secret of the fact that I want my long-term future to be here and to make that happen I need to be out on the pitch producing the goods, showing what I can do. I’ll take every chance I can get because staying here is what I want more than anything.
“If I keep getting out there, keep adding up the goals hopefully I’ll do enough.
“But I know to get a winning goal in the derby will be huge and perhaps that’s what I need to keep me here.
“What happened, happened. I know things are going to get brought up again because it will be the first time I’ve played against them for Swansea.
“But it’s gone and this game is more about me getting on with my football and me earning the right to stay at this club. It won’t be playing on my mind.”